Hello Aspirant,

Yes, it is compulsory for any student to avail caste category rank by their valid caste certificate. if you don't have valid caste certificate then the officials of counselling considering your common rank and not considering the caste catergory rank. so you should be update your caste certificate to avail your caste category rank in counseling. if you want more information then go through this link.

https://www.google.com/amp/s/engineering.careers360.com/articles/ap-eamcet-counselling/amp

hope it helps you.

thank you.